Perennial herbaceous plant up to 90 cm high with a thin rhizome, seated with brown root nodules. The stem is faceted, the leaves are compound, pair-pinnate, with oblong-elliptical leaflets and narrow-lanceolate stipules. Flowers moth, dark pink, fragrant, in racemes. Blooms in July-August. Beans linear, brown, cylindrical.
Distributed in the forest-steppe and steppe zones of Western, less often in Central Siberia. Grows in steppe, rarely solonetz meadows.
Tubers are medicinal raw materials. The plant contains protein, fat.
In folk medicine, a decoction of tubers is used as a fixative against diarrhea of various origins. Tubers boiled in salt water are edible.